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Mass Transfer

Mass Transfer
When the temperature and humidity of air is low, we usually use __________ draft cooling tower.

None of these
Induced
Natural
Forced

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Mass Transfer
______ is the separation technique used for desalination of sea water.

Reverse osmosis
Adsorption
Absorption
Thermal diffusion

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Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

Plate
Centrifugal
None of these
Packed

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Mass Transfer
When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal.

1
> 1
< 1
?

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Mass Transfer
Absorption factor method is used to calculate the number of ideal stages, when

Pressure drop in the column is very high
Operating line lies above the equilibrium line
Operating line lies below the equilibrium line
Both operating and equilibrium lines are parallel

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Mass Transfer
Dorr thickener is an equipment used for

Classification
Leaching
Clarification
Sedimentation

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